<template>
  <el-form size="small">
    <el-form-item>
      <el-radio :label="1" v-model='radioValue'>
        不填，允许的通配符[, - * /]
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio :label="2" v-model='radioValue'>
        每年
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio :label="3" v-model='radioValue'>
        周期从
        <el-input-number v-model='cycle01' :min='fullYear'/>
        -
        <el-input-number v-model='cycle02' :min='fullYear'/>
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio :label="4" v-model='radioValue'>
        从
        <el-input-number v-model='average01' :min='fullYear'/>
        年开始，每
        <el-input-number v-model='average02' :min='fullYear'/>
        年执行一次
      </el-radio>

    </el-form-item>

    <el-form-item>
      <el-radio :label="5" v-model='radioValue'>
        指定
        <el-select clearable v-model="checkboxList" placeholder="可多选" multiple>
          <el-option v-for="item in 9" :key="item" :value="item - 1 + fullYear" :label="item -1 + fullYear"/>
        </el-select>
      </el-radio>
    </el-form-item>
  </el-form>
</template>

<script>
export default {
  data() {
    return {
      fullYear: 0,
      radioValue: 1,
      cycle01: 0,
      cycle02: 0,
      average01: 0,
      average02: 1,
      checkboxList: [],
      checkNum: this.$options.propsData.check
    }
  },
  name: 'crontab-year',
  props: ['check', 'month', 'cron'],
  methods: {
    // 单选按钮值变化时
    radioChange() {
      if (this.cron.month === '*') {
        this.$emit('update', 'month', '0', 'year')
      }
      if (this.cron.day === '*') {
        this.$emit('update', 'day', '0', 'year')
      }
      if (this.cron.hour === '*') {
        this.$emit('update', 'hour', '0', 'year')
      }
      if (this.cron.min === '*') {
        this.$emit('update', 'min', '0', 'year')
      }
      if (this.cron.second === '*') {
        this.$emit('update', 'second', '0', 'year')
      }
      switch (this.radioValue) {
        case 1:
          this.$emit('update', 'year', '')
          break
        case 2:
          this.$emit('update', 'year', '*')
          break
        case 3:
          this.$emit('update', 'year', this.cycle01 + '-' + this.cycle02)
          break
        case 4:
          this.$emit('update', 'year', this.average01 + '/' + this.average02)
          break
        case 5:
          this.$emit('update', 'year', this.checkboxString)
          break
      }
    },
    // 周期两个值变化时
    cycleChange() {
      if (this.radioValue == '3') {
        this.$emit('update', 'year', this.cycleTotal)
      }
    },
    // 平均两个值变化时
    averageChange() {
      if (this.radioValue == '4') {
        this.$emit('update', 'year', this.averageTotal)
      }
    },
    // checkbox值变化时
    checkboxChange() {
      if (this.radioValue == '5') {
        this.$emit('update', 'year', this.checkboxString)
      }
    }
  },
  watch: {
    "radioValue": "radioChange",
    'cycleTotal': 'cycleChange',
    'averageTotal': 'averageChange',
    'checkboxString': 'checkboxChange'
  },
  computed: {
    // 计算两个周期值
    cycleTotal: function () {
      this.cycle01 = this.checkNum(this.cycle01, this.fullYear, this.fullYear + 100)
      this.cycle02 = this.checkNum(this.cycle02, this.fullYear + 1, this.fullYear + 101)
      return this.cycle01 + '-' + this.cycle02
    },
    // 计算平均用到的值
    averageTotal: function () {
      this.average01 = this.checkNum(this.average01, this.fullYear, this.fullYear + 100)
      this.average02 = this.checkNum(this.average02, 1, 10)
      return this.average01 + '/' + this.average02
    },
    // 计算勾选的checkbox值合集
    checkboxString: function () {
      let str = this.checkboxList.join()
      return str
    }
  },
  mounted: function () {
    // 仅获取当前年份
    this.fullYear = Number(new Date().getFullYear())
  }
}
</script>
